Cool looking castle
Unlike most of the castles, this one is privately owned by the Prince and Never opened to public. (unless you are invited by the Prince).
Lichtenstein is the richest per capita county in the world. Unlike all other European monarchies, the Prince holds real power and runs the country more less by himself.
Due to very business friendly laws and low taxes, the country serves as headquarters for thousands of companies.
There is even some manufacturing going on there and one ski resort!
But no castle to visit! I do not believe, that there is anything interesting to visit for the tourists.